Final answer:
Calibrating the printer's color settings through the Color Management tab is the most likely solution to resolve the color discrepancy issues in printed photos, with updating drivers and adjusting photo editing software as additional steps.
Step-by-step explanation:
The discrepancy in color between the original photos and the printed versions is often due to a misalignment in color calibration between the display device and the printer. The most effective solution in this scenario would generally be to calibrate the printer's color settings. This can be done through the Color Management tab of the printer driver, which allows for adjustments to ensure the colors of the printouts more accurately match what is seen on the screen. Updating the printer drivers can also help if the current drivers are outdated or corrupt, which could affect the printer's color processing abilities. Lastly, advising the customer to adjust the color settings in their photo editing software may help, but this would not address any potential calibration issues with the printer itself.